Michelson Doppler Imager
Medium Dependent Interface
Multiple Document Interface
Magnetic Direction Indicator
Miss Distance Indicator
Mechanical Design Integration
Media Dependent Interface
Memory Display Interface
Metered Dose Inhaler
methane diisocyanate
Methylene Diisocyanate
Major Depression Inventory
Management Development I
manic depressive illness
Manipulation Dependent Interface
Manual Data Input
Manual Data Interchange
Maryland Department of Information
Material Due In
Maximum Demand Indicator
Media Delivery Index
Media Dependant Interface
Mental Development Index
Mental Developmental Index
Menu-Driven Interface
meter-dose inhaler
metered dose inhalers
Methane Diphenyl Diisocyanate
Methyl Diphenylene Diisocyanate
methylene diphenyl diisocyanate